package com.zhou.seckill.exception;

import com.zhou.seckill.result.CodeMsg;
import com.zhou.seckill.result.Result;
import java.util.List;
import org.springframework.validation.BindException;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

@ControllerAdvice
@ResponseBody
public class GlobalExceptionHandler {

  @ExceptionHandler(value = Exception.class)
  public Result<String> exceptionHandler(Exception e) {
    if (e instanceof GlobalException) {
      GlobalException ex = (GlobalException) e;
      return Result.error(ex.getCodeMsg());
    } else if (e instanceof BindException) {
      BindException ex = (BindException) e;
      List<ObjectError> errors = ex.getAllErrors();
      ObjectError error = errors.get(0);
      String msg = error.getDefaultMessage();
      return Result.error(CodeMsg.BIND_ERROR.fillArgs(msg));
    } else {
      return Result.error(CodeMsg.SERVER_ERROR);
    }
  }
}
